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   Table of Contents
  • Introduction
  • Understanding Autism
  • What is autism?
  • Autism Symptoms & Diagnosis
  • Child Autism Causes
  • Are there accompanying disorders?
  • Finding Help and Hope
  • Is there reason for hope?
  • Can social skills and behavior be improved?
  • What medications are available?
  • What are the educational options?
  • Can child autism be outgrown?
  • Can adults with autism live independent lives?
  • Do families learn to cope?
  • What hope does research offer?
  • What are sources of information and support?
  • Keeping on Top of Your Condition
  • Resources
  •      

    Autism Symptoms & Diagnosis



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    Parents are usually the first to notice unusual behaviors in their child. In many cases, their baby seemed "different" from birth-being unresponsive to people and toys, or focusing intently on one item for long periods of time. The first signs of autism may also appear in children who had been developing normally. When an affectionate, babbling toddler suddenly becomes silent, withdrawn, violent, or self-abusive, something is wrong.

    Even so, years may go by before the family seeks a diagnosis. Well-meaning friends and relatives sometimes help parents ignore the problems with reassurances that "Every child is different," or "Janie can talk-she just doesn't want to!" Unfortunately, this only delays getting appropriate assessment and treatment for the child.

    Indicators of Normal Development

    Age Skills or Abilities
    Awareness and Thinking
    Communication Movement Social Self-help
    birth-
    3 months
    Responds to new sounds
    Follows movement of hands
      with eyes
    Looks at object and people
    Coos and makes sounds
    Smiles at mother's voice
    Waves hands and feet
    Grasps objects
    Watches movement of
      own hands
    Enjoys being tickled and
      held
    Makes brief eye contact
      during feeding
    Opens mouth to bottle or
      breast and sucks
    3-6 months Recognizes mother
    Reaches for things
    Turns head to sounds and
      voices
    Begins babbling
    Imitates sounds
    Varies cry
    Lifts head and chest
    Bangs objects in play
    Notices strangers and new
     places
    Expresses pleasure or
     displeasure
    Likes physical play
    Eats baby food from spoon
    Reaches for and holds
      bottle
    6-9 months Imitates simple gestures
    Responds to name
    Makes nonsense syllables
      like gaga
    Uses voice to get attention
    Crawls
    Stands by holding on to things
    Claps hands
    Moves objects from one
      hand to the other
    Plays peek-a-boo
    Enjoys other children
    Understands social signals like
      smiles or harsh tones
    Chews
    Drink from a cup with help
    9-12 months Plays simple games
    Moves to reach desired objects
    Looks at pictures in books
    Waves bye-bye
    Stops when told "no"
    Imitates new words
    Walks holding on to furniture
    Deliberately lets go of an object
    Makes markes with a pencil or
      crayon
    Laughs aloud during play
    Shows preference for one toy
      over another
    Responds to adult's change in
      mood
    Feeds self with fingers
    Drinks from cup
    12-18 months Imitates unfamiiar sounds
      and gestures
    Points to a desired object
    Shakes head to mean "no"
    Begins using words
    Follows simple commands
    Creeps upstairs and downstairs
    Walks alone
    Stacks blocks
    Repeats a performance
      laughed at
    Shows emotions like fear or
      anger
    Returns a kiss or hug
    Moves to help in dressing
    Indicates wet diaper
    18-24 months Identifies parts of own body
    Attends to nursery rhymes
    Points to pictures in books
    Uses two words to describe
      actions
    Refers to self by name
    Jumps in place
    Pushes and pulls objects
    Turns pages of book one
      by one
    Uses fingers and thumb
    Cries a bit when parents leave
    Becomes easily frustrated
    Pays attention to other
      children
    Zips
    Removes clothes without
      help
    Unwraps things
    24-36 months Matches shapes and objects
    Enjoys picture books
    Recognizes self in mirror
    Counts to ten
    Joins in songs and rhythm
    Uses three-word phrases
    Uses simple pronouns
    Follows two instructions at
      a time
    Kicks and throws ball
    Runs and jumps
    Draws straight lines
    Strings beads
    Pretends and plays make
      believe
    Avoids dangerous situations
    Initiates play
    Attempts to take turns
    Feeds self with spoon
    Uses toilet with some help
    Adapted from "Growth and Development Milestones," Maryland Infants and Toddlers
    Program, Baltimore, MD, 1995.

    Diagnostic procedures

    To date, there are no medical tests like x-rays or blood tests that detect autism. And no two children with the disorder behave the same way. In addition, several conditions can cause symptoms that resemble autism symptoms. So parents and the child's pediatrician need to rule out other disorders, including hearing loss, speech problems, mental retardation, and neurological problems. But once these possibilities have been eliminated, a visit to a professional who specializes in autism is necessary. Such specialists include people with the professional titles of child psychiatrist, child psychologist, developmental pediatrician, or pediatric neurologist.

    Child Autism specialists use a variety of methods to identify the disorder. Using a standardized rating scale, the specialist closely observes and evaluates the child's language and social behavior. A structured interview is also used to elicit information from parents about the child's behavior and early development. Reviewing family videotapes, photos, and baby albums may help parents recall when each behavior first occurred and when the child reached certain developmental milestones. The specialists may also test for certain genetic and neurological problems.

    Specialists may also consider other conditions that produce many of the same behaviors and symptoms as autism, such as Rett's Disorder or Asperger's Disorder. Rett's Disorder is a progressive brain disease that only affects girls but, like autism, produces repetitive hand movements and leads to loss of language and social skills. Children with Asperger's Disorder are very like high-functioning children with autism. Although they have repetitive behaviors, severe social problems, and clumsy movements, their language and intelligence are usually intact. Unlike autism, the symptoms of Asperger's Disorder typically appear later in childhood.

    Diagnostic criteria

    After assessing observations and test results, the specialist makes a diagnosis of autism only if there is clear evidence of:

    • poor or limited social relationships
    • underdeveloped communication skills
    • repetitive behaviors, interests, and activities.

    People with autism generally have some impairment within each category, although the severity of each symptom may vary. The diagnostic criteria also require that these symptoms appear by age 3.

    However, some specialists are reluctant to give a diagnosis of autism. They fear that it will cause parents to lose hope. As a result, they may apply a more general term that simply describes the child's behaviors or sensory deficits. "Severe communication disorder with autism-like behaviors," "multi-sensory system disorder," and "sensory integration dysfunction" are some of the terms that are used. Children with milder or fewer symptoms are often diagnosed as having Pervasive Developmental Disorder (PDD).

    Although terms like Asperger's Disorder and PDD do not significantly change treatment options, they may keep the child from receiving the full range of specialized educational services available to children diagnosed with autism. They may also give parents false hope that their child's problems are only temporary.


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